Mario Adorf is an Italian-German film and stage actor, best known for his lead role in the 1978 film, The Tin Drum.

Adorf was born in Zurich, Switzerland, the son of an Italian surgeon and a German nurse. His first appearance on-screen was in the 1954 film 08/15, in which he took on the role of a German soldier. He rose to fame in Europe, and particularly Germany, and also made appearances in international films, including Major Dundee, Ten Little Indians and Smilla's Sense of Snow. In Italy he was the main protagonist of the Zu Gino TV series (1985), as well as numerous movies.

In 1963, he married Lis Verhoeven. The pair had a child, Stella prior to their divorce. He starred with Barbara Bouchet in Milano Calibro 9 in 1972. In 1985, he married Monique Faye. Adorf remains very active in German films, television, and theatre.

Adorf still regrets that he refused parts in Francis Ford Coppola's The Godfather and Billy Wilder's One, Two, Three. He also turned down the role of General Mapache in Sam Peckinpah's The Wild Bunch (1969), because he felt the character was too violent.